Evidence map›Paper›PMID 11897858›Full record

ArticleThe Journal of physiology2002

Characterization of vasorelaxant responses to anandamide in the rat mesenteric arterial bed.

David Harris, Audrey I McCulloch, David A Kendall, Michael D Randall

Open access · greenAbstract read
In one paragraph

Article in The Journal of physiology, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
8.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 70 citations in OpenAlex.

  1. Review
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  10. N-arachidonoyl L-serine, an endocannabinoid-like brain constituent with vasodilatory properties.Proceedings of the National Academy of Sciences of the United States of America · 2006
    Article
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  15. Cardiovascular pharmacology of cannabinoids.Handbook of experimental pharmacology · 2005
    Review
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  17. Article
  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

David HarrisSchool of Biomedical Sciences, University of Nottingham Medical School, Queen's Medical Centre, Nottingham NG7 2UH, UK.
Audrey I McCulloch
David A Kendall
Michael D Randall
Queen's Medical Centre · GBUniversity of Nottingham · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The endogenous cannabinoid anandamide has recently been identified as a vasorelaxant but the underlying mechanisms are controversial. The vasorelaxant responses to anandamide have now been examined in the rat mesenteric arterial bed. Anandamide caused potent vasorelaxations (pD(2) = 6.24 +/- 0.06; R(max) = 89.4 +/- 2.2 %) which were unaffected by inhibition of nitric oxide synthase with N(G)-nitro-L-arginine methyl ester (L-NAME; 300 microM). The responses were also predominantly endothelium independent and were unaffected by the cannabinoid CB(1) receptor antagonist SR141716A (1 microM), although at higher concentrations (3 and 10 microM) SR141716A was inhibitory. Both 1 mM ouabain (pD(2) = 5.90 +/- 0.07; R(max) = 50.4 +/- 6.5 %) and 100 microM 18alpha-glycyrrhetinic acid (pD(2) = 6.04 +/- 0.14; R(max) = 40.9 +/- 5.8 %) opposed anandamide-induced vasorelaxation. However, the gap junction inhibitors carbenoxolone (100 microM) and palmitoleic acid (50 microM) did not affect vasorelaxation to anandamide. Relaxation to anandamide was significantly attenuated by both capsaicin pretreatment to deplete the sensory nerves of neurotransmitters (pD(2) = 5.86 +/- 0.18; R(max) = 56.3 +/- 5.2 %) and the vanilloid antagonist ruthenium red (10 microM; pD(2) = 5.64 +/- 0.09; R(max) = 33.7 +/- 3.9 %). However, these inhibitory effects were prevented by the additional presence of L-NAME, when the relaxation to anandamide was unaffected (pD(2) = 6.19 +/- 0.07; R(max) = 81.9 +/- 2.8 %). The inhibitor of neuronal nitric oxide synthase, 7-nitroindazole, also prevented capsaicin from inhibiting the responses to anandamide. The results of this study point to anandamide acting via several mechanisms, which include the involvement of sensory nerves, but only in the presence of nitric oxide.

Indexed as

VasodilationAnimalsAnimals, NewbornArachidonic AcidsBiological FactorsCapsaicinDrug SynergismEndocannabinoidsEnzyme InhibitorsGap JunctionsIndomethacinIn Vitro TechniquesMaleMesenteric ArteriesNG-Nitroarginine Methyl EsterNitric Oxide SynthaseanandamideArachidonic AcidsBiological FactorsCapsaicinEndocannabinoidsendothelium-dependent hyperpolarization factorEnzyme InhibitorsIndomethacinNG-Nitroarginine Methyl EsterNitric Oxide SynthasePolyunsaturated AlkamidesReceptors, CannabinoidReceptors, DrugRuthenium RedVasodilator Agents

Identifiers

PMID11897858
PMCPMC2290180
OpenAlexW1970330128

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.